Here is a Nidoking team:
https://pastebin.com/5HmbtFj8
It runs scarf Nidoking as the main wall breaker, AV Alolan-Muk for trapping psychic types for Nidoking, phys def Seismitoad, Choice band sap sipper miltank for amoonguss, mega aero, and Fairium Z Comfey.
Feel free to change anything, I think Comfey really benefits from hp fire if you'd rather use that than synthesis.
Enjoy!
-Avalanche